I have read a lot of interesting questions and answers on PDF/A-1b production with LaTeX and pdfTeX. I still can't produce validating PDF/A-1b files. I used either: the standard up-to-date pdfx ...
I have heard about PDF subsets PDF/A (for archival) and PDF/X (for printing). How to generate LaTeX documents like that? I'm also interested in answers with plain TeX and ConTeXt, and hopefully with ...